Exploració per autor "Riba Ruiz, Jordi-Roger"
Ara es mostren els items 29-48 de 168
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Calculation of the ac to dc resistance ratio of conductive nonmagnetic straight conductors by applying FEM simulations
Riba Ruiz, Jordi-Roger (2015-09-01)
Article
Accés obertThis paper analyzes the skin and proximity effects in different conductive nonmagnetic straight conductors’ configurations subjected to applied alternating currents and voltages. These effects have important consequences, ... -
Calculation of the inductance of conductive nonmagnetic conductors by means of finite element method simulations
Riba Ruiz, Jordi-Roger; Capelli, Francesca (2018-09-13)
Article
Accés obertThis article analyzes the inductance of different conductive nonmagnetic conductors’ configurations under alternating current (AC) supply. The inductance is a key design parameter in tracks of electronic devices, power ... -
Characterizing the temperature dependence of the contact resistance in substation connectors
Riba Ruiz, Jordi-Roger; Martínez Reyes, Jimmy Arturo; Moreno Eguilaz, Juan Manuel; Capelli, Francesca (Elsevier, 2021-04)
Article
Accés obertThe electrical resistance, and in particular, the electrical contact resistance (ECR), plays a critical role in the electrical and thermal behaviors of substation connectors. Despite its impact, there are very few research ... -
Circular economy of post-consumer textile waste: classification through infrared spectroscopy
Riba Ruiz, Jordi-Roger; Cantero, Rosa; Canals, Trini; Puig Vidal, Rita (2020-11-01)
Article
Accés obertThe textile and fashion industry is amongst the most resource-intensive and polluting industries, thus impacting the natural environment. During the last decades, there has been an increase in the manufacturing of textiles. ... -
Classification of textile samples using data fusion combining near- and mid-infrared spectral information
Riba Ruiz, Jordi-Roger; Cantero, Rosa; Puig Vidal, Rita (Multidisciplinary Digital Publishing Institute (MDPI), 2022-07-29)
Article
Accés obertThere is an urgent need to reuse and recycle textile fibers, since today, low recycling rates are achieved. Accurate classification methods for post-consumer textile waste are needed in the short term for a higher circularity ... -
Closed-loop controller for eliminating the contact bounce in DC core contactors
García Espinosa, Antonio; Riba Ruiz, Jordi-Roger; Cusidó Roura, Jordi; Ortega Redondo, Juan Antonio; Romeral Martínez, José Luis (2010-09)
Article
Accés obertThe undesirable phenomenon of the contact bounce causes severe erosion of the contacts and, as a consequence, their electrical life and reliability are greatly reduced. On the other hand, the bounce of the armature can ... -
CNN-LSTM-based prognostics of bidirectional converters for electric vehicles’ machine
Rojas Dueñas, Gabriel; Riba Ruiz, Jordi-Roger; Moreno Eguilaz, Juan Manuel (Multidisciplinary Digital Publishing Institute (MDPI), 2021-10-26)
Article
Accés obertThis paper proposes an approach to estimate the state of health of DC-DC converters that feed the electrical system of an electric vehicle. They have an important role in providing a smooth and rectified DC voltage to ... -
Combined heat and power design based on environmental and cost criteria
González, Arnau; Riba Ruiz, Jordi-Roger; Rius Carrasco, Antoni (2016-10-22)
Article
Accés obertThis paper proposes a hybrid renewable energy system (HRES) consisting of photovoltaic (PV), wind and forest wood biomass power for cogeneration, and applies a multi-objective optimization methodology to study the trade-offs ... -
Comparative study of AC and positive and negative DC visual corona for sphere-plane gaps in atmospheric air
Riba Ruiz, Jordi-Roger; Morosini, Andrea; Capelli, Francesca (Multidisciplinary Digital Publishing Institute (MDPI), 2018-10-08)
Article
Accés obertDue to the expansion of high-voltage direct current (HVDC) power systems, manufacturers of high-voltage (HV) hardware for alternating current (ac) applications are focusing their efforts towards the HVDC market. Because ... -
Comparative Study of Multivariate Methods to Identify Paper Finishes Using Infrared Spectroscopy
Riba Ruiz, Jordi-Roger; Canals Parelló, Trini; Cantero Gómez, María Rosa (2012-03-09)
Article
Accés obertRecycled paper is extensively used worldwide. In the last decades its market has expanded considerably. The increasing use of recycled paper in papermaking has led to the production of paper containing several types of ... -
Composition determination of rubber blends by applying differential scanning calorimetry and SPA-PLS treatment
Riba Ruiz, Jordi-Roger; Mansilla, Marcela Ángela; Canals, Trini; Cantero, Rosa (2019-01-07)
Article
Accés obertThis paper proposes an innovative approach to determine the composition of natural rubber (NR) and styrene butadiene rubber (SBR) blends from the analysis of the data provided by the differential scanning calorimetry (DSC) ... -
Computationally efficient design and optimization approach of PMa-SynRM in frequent operating torque-speed range
López Torres, Carlos; García Espinosa, Antonio; Riba Ruiz, Jordi-Roger; Lux, Gerhard; Romeral Martínez, José Luis (2018-04-30)
Article
Accés restringit per política de l'editorialThis paper proposes a design process of permanent magnet assisted synchronous reluctance motors (PMa-SynRM) intended for vehicular propulsion. This approach takes into account range optimization and a multiphysics evaluation ... -
Corona discharge characteristics under variable frequency and pressure environments
Bas Calopa, Pau; Riba Ruiz, Jordi-Roger; Moreno Eguilaz, Juan Manuel (Multidisciplinary Digital Publishing Institute (MDPI), 2021-10-08)
Article
Accés obertMore electric aircrafts (MEAs) are paving the path to all electric aircrafts (AEAs), which make a much more intensive use of electrical power than conventional aircrafts. Due to the strict weight requirements, both MEA and ... -
Customized PMSM design and optimization methodology for water pumping applications
Candelo Zuluaga, Carlos Andres; Riba Ruiz, Jordi-Roger; García Espinosa, Antonio; Tubert Blanch, Pere (2021-06-11)
Article
Accés obertThe need to reduce water pumps size to achieve compact designs adapted to multiple working points opens new fields of study. PMSMs are the preferred choice due to outstanding torque-speed range capabilities. This paper ... -
DC-DC buck converter parameter identification based on a white-box approach
Balakrishnan, Hariharan; Moreno Eguilaz, Juan Manuel; Riba Ruiz, Jordi-Roger; Bogarra Rodríguez, Santiago; García Espinosa, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2018)
Comunicació de congrés
Accés obertThis paper proposes to use a white-box approach to identify the parameters of an electronic DC-DC buck converter. It discretizes the differential equations governing the dynamic of such system, which are used to identify ... -
Demagnetization diagnosis in permanent magnet synchronous motors under non-stationary speed conditions
Riba Ruiz, Jordi-Roger; García Espinosa, Antonio; Romeral Martínez, José Luis; Cusidó Roura, Jordi (2010-10)
Article
Accés restringit per política de l'editorialPermanent magnet synchronous motors (PMSMs) are applied in high performance positioning and variable speed applications because of their enhanced features with respect to other AC motor types. Fault detection and diagnosis ... -
Denoising of online resistance measurements of power connectors for IoT applications
Liu, Yuming; Riba Ruiz, Jordi-Roger; Moreno Eguilaz, Juan Manuel; Sanllehí Muñoz, Josep (Institute of Electrical and Electronics Engineers (IEEE), 2023)
Comunicació de congrés
Accés obertThe increasing development of the Internet of Things (IoT) allows the acquisition of key parameters to develop health monitoring strategies for power transmission systems. These IoT devices need to incorporate sensors for ... -
Design and optimization for vehicle driving cycle of rare-earth-free SynRM based on coupled lumped thermal and magnetic networks
López Torres, Carlos; García Espinosa, Antonio; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis (2018-01-01)
Article
Accés restringit per política de l'editorialThis work presents a range optimization of a SynRM (synchronous reluctance motor) and a PMaSynRM (permanent-magnet-assisted synchronous reluctance motor) according to a standard driving cycle, and the solutions obtained ... -
Detailed off-line parameter identification of synchronous generator based on frequency response tests
Bogarra Rodríguez, Santiago; García Espinosa, Antonio; Moreno Eguilaz, Juan Manuel; Riba Ruiz, Jordi-Roger (Institute of Electrical and Electronics Engineers (IEEE), 2018)
Comunicació de congrés
Accés obertThis work presents a general methodology, based on standstill frequency response tests. Once the circuit topology is chosen, it allows a systematic calculation of the circuit parameters for a salient pole synchronous ... -
Detection of demagnetization faults in surface-mounted permanent magnet synchronous motors by means of the zero-sequence voltage component
Urresty Betancourt, Julio César; Riba Ruiz, Jordi-Roger; Delgado Prieto, Miquel; Romeral Martínez, José Luis (2012-03-01)
Article
Accés restringit per política de l'editorialThis paper develops and analyzes an online methodology to detect demagnetization faults in surface-mounted permanent magnet synchronous motors. The proposed methodology, which takes into account the effect of the inverter ...